6530444125 has 32 divisors (see below), whose sum is σ = 8364676320. Its totient is φ = 5087232000.

The previous prime is 6530444117. The next prime is 6530444143. The reversal of 6530444125 is 5214440356.

It can be written as a sum of positive squares in 16 ways, for example, as 6398240121 + 132204004 = 79989^2 + 11498^2 .

It is not a de Polignac number, because 6530444125 - 2³ = 6530444117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3940297 + ... + 3941953.

It is an arithmetic number, because the mean of its divisors is an integer number (261396135).

Almost surely, 2^6530444125 is an apocalyptic number.

It is an amenable number.

6530444125 is a deficient number, since it is larger than the sum of its proper divisors (1834232195).

6530444125 is a wasteful number, since it uses less digits than its factorization.

6530444125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2482 (or 2472 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 6530444125 is about 80811.1633686832. The cubic root of 6530444125 is about 1869.1647088776.

The spelling of 6530444125 in words is "six billion, five hundred thirty million, four hundred forty-four thousand, one hundred twenty-five".